” It has been said thatcameras are the “eyes” of modern-day video surveillance systems and video analytics the “brain.” Still, for the added intelligence they afford, video analytics deployments, especially outdoor deployments, are not without challenges. Factors such as rain, snow, wind, fog, scene illumination, seasonal changes, and the distance and size of objects you’re trying to identify, all come into play.
In my many years in video surveillance, few if any projects I’ve been involved in have topped theQingzang Railway. And I mean that quite literally!
At altitudes of about 13,000 feet, the Railway – which runs 1,215 miles from Golud, China to Lhasa, Tibet – traverses the Himalayan Mountains. It crosses a massive plateau some call the “Rooftop of the World.” To help keep the Railway and its passengers safe and secure, NICE provided a video surveillance solution equipped with intrusion detection capabilities.
In addition to the usual environmental challenges, we had to contend with the possibility of passing trains and other diversions (such as moving cows) crossing a camera’s field of vision, which could cause a false alert – not to mention extreme weather conditions and high winds. The system also had to be able to detect intruders from a distance of up to 1 kilometer away. To do this, we increased the processing resolution so the system could detect what appeared to be smaller objects in the distance.Watch this actual video and you’ll see what I mean! (About 47 seconds into the video look for an intruder in the upper right corner of your screen.)
Government Video Magazine also recently wrote an excellent article on the Qingzang Railway. You can read the piece (Protecting the Rails on ‘The Rooftop of the World’) and learn more athttp://www.governmentvideo.com/article/98722.
Got a video analytics question or challenge? I’d love to hear from you.”